Michael Norgan
Radiant Sales Manager
michael.norgan@viega.com
Michigan – Indiana - Ohio
Why Radiant?
Advantages Of Radiant
Homeowner
– Comfort
– Energy Efficiency
– Versatility
– Clean
– Quiet
– No Furniture Restrictions
Advantages Of Radiant
Contractor
– Less Labor = More $$$
– Ease of Installation
– Connection Methods
• Durable
• Reliable
– Support (The Viega Partnership)
• State of the Art Educational Facility
• Technical Support
– Design & Layout Service
• Factory Field Sales
• Distributors
Heat Transfer
• Convection
– Natural Convection – buoyancy differences within
the fluid itself cause it to move along a surface.
• Baseboard
• Radiant
• Radiator
– Forced Convection – a fluids motion is created by
either a circulator or a blower. This will create more
motion thus more heat transfer over the surface
• Forced Air
Heat Transfer
• Radiation
– For example a fire is radiating heat toward you
without a medium between the two
• Baseboard
• Radiant
• Radiator
Heat Transfer
• Conduction
– An example of this is walking on hot asphalt in the
summer; your feet feel hot through conduction.
• Radiant
Ideal Heating Curve
Extremities typically receive
minimal heat from the
bloodstream.
Head has a good supply of
heat-carrying blood.
Air temperature should vary
from floor to ceiling.
Warm at floors.
Cool at head level.
Forced Air Heating Curve
Exact opposite of the ideal
heat curve.
Cold feet – hot head
Cold drafts may occur.
High temperature air may be
blown at occupants.
Baseboard Heating Curve
Has minimal surface area.
Operates at high water
temperatures.
Tends to create uneven pools
of warmth.
Radiator Heating Curve
Operates at high water
temperatures.
Most of the heat is delivered by
convection.
Creates convective warm air
currents.
Radiant Floor Heating Curve
Warm at floors.
Entire floor surface area is in
effect a low temperature radiator.
Warms other surfaces in the
room.
Has superior energy efficiency.
NATURAL CONVECTION
Warm Air
Hot Air
Cool Air
Cold Air
Warm air circulates around room
RADIANT
Even Heating
Temperature Distribution
Forced Hot Air
Radiant
0°F
ΔT=65°F
5ft=68°F
ΔT=95°F
5ft=73°F
Installation Methods
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•
•
•
•
•
Climate Panel®
Concrete Slab
Thin-Slab Concrete
Snap Panel
Heat Transfer Plate
Climate Trak
Climate Panel
Concrete Slab
Thin-Slab
Concrete
Snap Panel
Heat Transfer
Plates
Climate Trak
Installation Methods Slab on Grade
•
•
•
•
Mostly used in basements or first floors, when new slab is poured
High mass system
Tubing is attached via screw clip plastic fasteners to insulation or wire
mesh
Wet system
Installation Methods Slab on Grade
4"Concrete Slab
Note: Minimum 3/4" concrete required
from top of pipe to surface of slab
Note: Place fasteners every
2' to 3' so that the pipe does
not float in the slab. More
maybe required if pipe rises.
Ensure bends are secured.
1"
1"
Compact Subbase
Rigid Foam Board Insulation
Under Slab and Around Edges
(Ensure compression rating is
suitable for application)
Wire Mesh
Vapor Barrier
9" Spacing
(per design)
9"Tubing
Keep tubing 6" away
from walls.
Slab-on-Grade: Nylon Pipe Ties
Snap Panel Wet Mass installation
•
•
•
3’ x 5’ polystyrene grid fastener system
3” spacing increments for fast easy installation
½” ViegaPEX Barrier or FostaPEX tubing
Commercial Pour
Installation Methods Thin-Slab
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•
•
•
Mostly used in wood frame construction
High mass system
Tubing is attached via plastic fasteners or staples to subfloor
Wet system
Residential Lightweight Pour
Before
After
Residential Lightweight Pour
4” Slab vs 1.5” Thin Slab
4” Slab vs 1.5” Thin Slab
4” Slab vs 1.5” Thin Slab
4" Slab vs 1.5" Thin Slab Output 9" O.C. 1/2" Hardwood
20.0
17.8
18.0
16.0
15.2
BTUh/ft2
14.0
12.0
4" SLAB - 1/2" Oak Flooring 9" O.C.
10.0
1.5" Thin Slab - 1/2" Oak Flooring 9" O.C.
8.0
6.0
4.0
2.0
0.0
1
MHWT 100 o F
Climate Panel® Finish Floors
Hardwood
Tile
Carpet
Linoleum/Vinyl
Climate Panel® Hardwood
• Climate Panels® must be installed perpendicular to wood floor
direction.
• Stagger the seams of the Climate Panels®
• Install finished floor as per manufacturer’s recommendations.
Residential Foyer
Before
After
Climate Panel® Carpet
•
•
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For minimum height build up, install carpet and pad directly over
Climate Panels®
If height allows ,a luan plywood cover sheet can be installed over the
Climate Panel® system
Install carpet and pad with nailing strips
Climate Panel® Tile
• Glue and screw a concrete fiberboard to Climate Panels® (1/4” –
3/8”)
• Set tiles into thin set
Residential Master Bath
Before
After
Climate Panel® Linoleum/Vinyl
• Glue and screw plywood or concrete fiberboard to
panels
• Glue linoleum/vinyl to plywood or concrete fiberboard
Climate Panel® Over Concrete
Climate Panel For Radiant Wall / Ceiling
Heat Transfer Plates
Climate Trak
Residential Below Subfloor
Climate Panel Output
Climate Trak Output
Climate Panel vs Climate Trak
Climate Panel vs Climate Trak Output 1/2" Hardwood
16.0
14.0
13.7
BTUh/ft2
12.0
9.8
10.0
Climate Panel - 1/2" Oak Flooring 7" O.C.
8.0
Climate Trak - 1/2" Oak Flooring, 8" O.C.
6.0
4.0
2.0
0.0
1
MHWT 100 o F
VIEGA STATION OFFERINGS
Mixing Station
Features & Benefits
– Modulates supply mixed water temperature being supplied to radiant floor
– Compact (18”x8”)
– Factory preassembled
– Easy installation
– Available in 2, 3 speed pump sizes (Low &High Head)
– 3-way Diverting valve with internal mechanical flow limit
– Patented design with circulator on return
– Ideal for residential, commercial & some industrial applications
– High temperature capacity
– Higher flow characteristics
VIEGA STATION OFFERINGS
Mixing Station (Function)
Mixing Point
1-Supply water from heat
source
1
2
2-Supply mixed water
temperature delivered to
heated area
4a
3-Return water from heated
area
4a-Return water being diverted
to mixing point
4b-Return water exiting back to
heat source
4b
3
Diverting Point
3 Way Mixing Valve/ Diverting Valve
100°
180°
120°
Mixing Valve
3 Way Mixing Valve/ Diverting Valve
180°
180°
180°
Diverting Valve